Question

In 4 lazi s-au pus cate 8kg de cartofi si 5kg de morcovi.Catekg de legume sunt la un loc?.Rezolva in doua moduri.
Calculeaza in doua moduri:
(2+3)×7=
(4+5)×3=​

Answer 1

Primul mod:

1. (2+3)×7=5×7=35

2. (4+5)×3=9×3=27

Al doilea mod:

1. (2+3)×7=2×7+3×7=14+21=35

2.(4+5)×3=4×3+5×3=12+15=27